Transmission of underwater electromagnetic radiation through...

Details Transmission of underwater electromagnetic radiation through... Transmission of underwater electromagnetic radiation through...

2006-01-24

2010-06-22

Ho, Tan (Department: 2821)

Communications: radio wave antennas

Antennas

Buried underground or submerged under water

C343S709000, C343S787000

Reexamination Certificate

active

07742007

ABSTRACT:
An underwater communication method is provided. EM signals are transmitted via a seabed using an underwater electrically insulated magnetically coupled antenna. By making use of the low loss properties of the seabed, EM signal attenuation can be reduced and consequently the transmission range can be increased. The underwater electrically insulated magnetically coupled antenna may be located within a body of water or may be buried in the seabed.

REFERENCES:
patent: 4458248 (1984-07-01), Lyasko
patent: 6154179 (2000-11-01), Kohno
patent: 6859038 (2005-02-01), Ellingsrud et al.
patent: 7126338 (2006-10-01), MacGregor et al.
patent: 7203599 (2007-04-01), Strack et al.
patent: 7453763 (2008-11-01), Johnstad
patent: 2007/0135044 (2007-06-01), Rhodes et al.

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